Lubrication system for a linear guideway

Abstract

A lubrication system for a linear guideway is disposed between an end cap and a capping plate at either side of a sliding block, and comprises: an oil feeding hole, a first oil guiding route, a first oil-flowing hole, a second oil guiding route, a second oil-flowing hole, an upper ball rolling groove and a lower ball rolling groove. The lubrication system for a linear guideway is a three dimensional structure for enabling oil to flow in a 3D manner into the respective ball rolling grooves to lubricate rolling balls more evenly, and the problem of oil leakage can also be prevented.

1 . A lubrication system for a linear guideway disposed between an end cap and a capping plate at either side of a sliding block, comprising: an oil feeding hole, a first oil guiding route, a first oil-flowing hole, a second oil guiding route, a second oil-flowing hole, an upper ball rolling groove and a lower ball rolling groove: 
 wherein the oil feeding hole is connected to the first oil guiding route, the first oil guiding route is formed by the end cap and the capping plate, the second oil guiding route is formed in a rear surface of the capping plate opposite the first oil guiding route, the first oil-flowing hole is employed to connect the first oil guiding route and the second oil guiding route, the upper and lower ball rolling grooves are defined in the lubrication system respectively, the second oil-flowing hole is connected to the second oil guiding route and is located between the upper and lower ball rolling grooves, for allowing the second oil-flowing hole to be connected both to the upper ball rolling groove and the lower ball rolling groove synchronously, by such arrangements, oil fed into the oil feeding hole, after flowing to the second oil-flowing hole through the first oil guiding route, the first oil-flowing hole and the second oil guiding route, will be evenly distributed to the upper ball rolling groove and the lower ball rolling groove to lubricate rollers.    
   
   
       2 . The lubrication system for a linear guideway as claimed in  claim 1 , wherein the capping plate is provided with stopping piece, so as to prevent oil leakage from the contacting surfaces of the end cap and the sliding block.  
   
   
       3 . The lubrication system for a linear guideway as claimed in  claim 2 , wherein the stopping piece is a detachable structure.